Terex TR60 Maintenance Manual page 221

CYLINDER CHARGING PRESSURE
bar
13.8
Note: As the frame rises during the charging
operations, follow the frame up with blocking and/or a
hydraulic jack.
8. When height 'A' (Fig. 8) has been reached, close
valve on the nitrogen bottle and tank valve (6, Fig. 9)
securely. Turn small hex on nitrogen charging valves
(4) clockwise to close valves internally. Rotate 'T'
handles of valve chucks (2, Fig. 9) anticlockwise until
they stop.
9. With cylinder valve (4, Fig. 9) open and tank valve
(6, Fig. 9) closed, bleed pressure gauge (5, Fig. 9)
and hoses (1, Fig. 9) through bleeder valve (10, Fig. 9).
Loosen the swivel nuts and remove valve chucks (2,
Fig. 9) and hoses (1, Fig. 9) from nitrogen charging
valves (4).
Note: On new or rebuilt cylinders, the seals and
wipers may grip the piston rods tighter and make it
difficult to obtain the correct height shown in Fig. 8. If
this happens, the cylinders should be charged as
accurately as possible, the vehicle operated for
several days, and then the cylinder checked.
10. Check nitrogen charging valves (4) for leakage
with soapy water. If either core is leaking, depress it
quickly once or twice to reseat the core. If leakage
persists, replace core. Tighten charging valve lock
nut and replace valve cap. Tighten valve cap so that
it cannot be removed by hand.
11. If the cylinders bottom out when they are charged
SPECIAL TORQUE SPECIFICATIONS
FIG. NO.
2
1 & 4
1 & 4
1 & 4
-
-
SM 1584 12-98
lbf/in²
200
ITEM NO.
3
8
25
31
-
- Steering Cylinder Nut
Suspension System - Front Ride Cylinder
to the correct height and the truck is not being
overloaded, the oil level may be incorrect. The ride
cylinders should be discharged, refilled with oil, and
recharged as described above.
MAINTENANCE
Check ride cylinder heights daily. Lubricate the ride
cylinders at service intervals and with lubricant
specified in Section 300-0020, LUBRICATION
SYSTEM.
SPECIAL TOOLS
Numbers in parentheses refer to Fig. 9.
Refer to Section 300-0070, SERVICE TOOLS, for
part numbers of the charging assembly shown in
Fig. 9, additional parts required for simultaneous
charging of both ride cylinders, general service tools
and adhesives required. These parts, tools and
adhesives are available from your dealer.
To simultaneously charge the ride cylinders, the
charging assembly can be modified as follows:
a. Disconnect hose (1) assembly from cylinder valve
(4) and install a tee piece in cylinder valve (4).
b. Connect hose (1) assembly to one branch of the
tee piece and secure.
c. To make the second hose assembly, connect both
additional hoses together with a coupling. Install a
valve extension in a chuck valve and install the
chuck valve assembly on the hose assembly.
d. Connect the second hose assembly to the
remaining branch of the tee piece and secure.
ITEM NAME
Bolt
Bolt
Locknut
Bolt
Tie Rod Nut
Section 180-0030
TORQUE
Nm
900 - 980 660 - 730
105
105
280
1 150 - 1 290 850 - 950
1 560 - 1 630 1 150 - 1 200
lbf ft
78
78
205
9